The invention discloses a lever type hydraulic jack. The lever type hydraulic jack comprises an assistant lever, a hydraulic piston oil cylinder, a base, a piston rod, a small piston, a large piston and a telescopic support frame, wherein the assistant lever is positioned on the upper surface of the base, and is connected with the small piston; the small piston is mounted in the hydraulic piston oil cylinder; one end, in the base, of the piston rod is connected with the hydraulic piston oil cylinder; the other end of the piston rod is connected with the large piston; a hinge base is fixed in the large piston, and is connected with the telescopic support frame; and a weight tray is mounted on the upper surface of the telescopic support frame. The invention provides the hydraulic jack having the lever, changes a vertical mode of a traditional hydraulic jack, and changes the hydraulic piston oil cylinder to a horizontal support stop structure; force output by the piston rod is amplified for the second time through the telescopic support frame in the mechanical structure, so that the jacking amplitude is greater; the application range is wider; and the characteristics of more convenience and labor saving are achieved by dint of the lever principle.
Lever type hydraulic jack
2015-11-18
Patent
Elektronische Ressource
Englisch
IPC: | B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last |